/*
 *  This file is part of WWWPal.
 *
 *  Copyright (C) 2003  Dr. John Punin, Department of Computer Science
 *  Rensselaer Polytechnic Institute
 *
 *  WWWPal is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  WWWPal is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Foobar; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef GR_LEVEL_H
#define GR_LEVEL_H
#include "gr_graph.h"
#include "gr_node.h"
#include "gr_edge.h"

#include "gr_graph_fun.h"

int
compute_level_positions(GraphFrame *gf);
int
Assign_level_nodes(GraphFrame *gf);
void 
make_levels(GraphFrame *gf);
int
place_nodes(GraphFrame *gf);
void
delete_levels( LNode_type ** levels);
int
calculate_hight_level(GraphFrame *gf, double *L,  double *ystep);
int
calculate_width_level(GraphFrame *gf, double *L,  double *xstep,int levelcnt);

#endif
